/Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/GeometryCollectionPhysicsProxy.h
void ApplyExternalStrain_External ( [FGeometryCollectionItemIndex](API\Runtime\Chaos\PhysicsProxy\FGeometryCollectionItemIndex) ItemIndex, const FVector & WorldLocation, float Radius, int32 PropagationDepth, float PropagationFactor, float StrainValue )